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[IPV6]: Allow link-local tunnel endpoints

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Allow link-local tunnel endpoints if the underlying link is defined.

Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ville Nuorvala 2006-11-24 17:06:53 -08:00 committed by David S. Miller
parent 09c6bbf090
commit 305d4b3ce8
1 changed files with 6 additions and 2 deletions
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8
net/ipv6/ip6_tunnel.c
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@ -460,6 +460,7 @@ ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
if (rel_msg && pskb_may_pull(skb, offset + sizeof (*ipv6h))) {
struct rt6_info *rt;
struct sk_buff *skb2 = skb_clone(skb, GFP_ATOMIC);
if (!skb2)
goto out;
@ -824,7 +825,7 @@ static void ip6_tnl_set_cap(struct ip6_tnl *t)
if (ltype & (IPV6_ADDR_UNICAST|IPV6_ADDR_MULTICAST) &&
rtype & (IPV6_ADDR_UNICAST|IPV6_ADDR_MULTICAST) &&
!((ltype|rtype) & IPV6_ADDR_LOOPBACK) &&
!((ltype|rtype) & IPV6_ADDR_LINKLOCAL)) {
(!((ltype|rtype) & IPV6_ADDR_LINKLOCAL) || p->link)) {
if (ltype&IPV6_ADDR_UNICAST)
p->flags |= IP6_TNL_F_CAP_XMIT;
if (rtype&IPV6_ADDR_UNICAST)
@ -862,8 +863,11 @@ static void ip6ip6_tnl_link_config(struct ip6_tnl *t)
dev->iflink = p->link;
if (p->flags & IP6_TNL_F_CAP_XMIT) {
int strict = (ipv6_addr_type(&p->raddr) &
(IPV6_ADDR_MULTICAST|IPV6_ADDR_LINKLOCAL));
struct rt6_info *rt = rt6_lookup(&p->raddr, &p->laddr,
p->link, 0);
p->link, strict);
if (rt == NULL)
return;